Method of dimensioning and producing stiffened structural components, use of structural condition sensors and an aircraft
First Claim
1. A method of dimensioning and producing stiffened structural components having at least one shell component and at least one stiffening component, the method comprising:
- dimensioning the at least one shell component and the at least one stiffening component based upon at least one of (1) a predetermined safety factor and (2) a structural inspection interval in which a predetermined maximum crack progression in the shell component is not to be exceeded and the strength of the structural component does not fall below a predetermined minimum residual strength, the dimensioning also based upon the assumption of intactness of the at least one stiffening component; and
securing the at least one stiffening component to the shell component to form the stiffened structural component,the at least one stiffening component having a long dimension along the at least one shell component and at least one elongated structural sensor positioned mid-height on the at least one stiffening component, the elongated structural condition sensor extending substantially along the long dimension of the stiffening component and detecting intactness of the stiffened structural components.
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Accused Products
Abstract
The invention concerns a method of dimensioning and producing stiffened structural components (4) comprising at least one shell component (6) and at least one stiffening component (8) which can be connected thereto, in which the shell component (6) and the at least one stiffening component (8) is dimensioned on the assumption of intactness of the at least one stiffening component and having regard to a predetermined safety factor and/or a predetermined structural inspection interval in which a predetermined maximum crack progression in the shell component is not to be exceeded and/or the strength of the structural component is not to fall below a predetermined minimum residual strength, and in which the at least one stiffening element (8) of the structural component dimensioned by this method is equipped with at least one structural condition sensor (30) for detecting intactness; as well as the use of structural condition sensors in an aircraft, in particular a passenger aircraft.
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Citations
22 Claims
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1. A method of dimensioning and producing stiffened structural components having at least one shell component and at least one stiffening component, the method comprising:
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dimensioning the at least one shell component and the at least one stiffening component based upon at least one of (1) a predetermined safety factor and (2) a structural inspection interval in which a predetermined maximum crack progression in the shell component is not to be exceeded and the strength of the structural component does not fall below a predetermined minimum residual strength, the dimensioning also based upon the assumption of intactness of the at least one stiffening component; and securing the at least one stiffening component to the shell component to form the stiffened structural component, the at least one stiffening component having a long dimension along the at least one shell component and at least one elongated structural sensor positioned mid-height on the at least one stiffening component, the elongated structural condition sensor extending substantially along the long dimension of the stiffening component and detecting intactness of the stiffened structural components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 19, 20, 21)
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16. A method for detecting the intactness of one or more stiffening components of a structural component comprising:
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providing a structural component having at least one shell component and at least one stiffening component connected to the at least one shell component, the structural component dimensioned such that at least one condition is met from the group consisting of;
a predetermined maximum crack progression in the shell component is not exceeded and the strength of the structural component does not fall below a predetermined minimum residual strength within a predetermined structural inspection interval; anddetecting the intactness of the at least one stiffening component using at least one elongated structural condition sensor, the at least one stiffening component having a long dimension along the at least one shell component, the at least one elongated structural condition sensor positioned mid-height on the at least one stiffening component and extending substantially along the long dimension of the stiffening component. - View Dependent Claims (22)
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17. An aircraft comprising:
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at least one stiffened structural component having at least one shell component and at least one stiffening component, the at least one shell component and the at least one stiffening component being dimensioned based upon at least one selected from the group consisting of;
(1) a predetermined safety factor and (2) a predetermined structural inspection interval in which a predetermined maximum crack progression in the shell component is not to be exceeded and the strength of the structural component is not to fall below a predetermined minimum residual strength, the at least one structural component also being dimensioned on an assumption of intactness of the at least one stiffening component, the stiffening component having a long dimension along the at least one shell component; andat least one elongated structural condition sensor positioned mid-height on the at least one stiffening component and extending substantially along the long dimension of the stiffening component the at least one elongated structural condition sensor detecting intactness of the stiffened structural component. - View Dependent Claims (18)
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Specification